# SDR 9WGA2020092858101

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 28, 2020
- Submitted: September 28, 2020
- Operation: Air carrier
- Aircraft: [N581JN](https://openairdocs.org/aircraft/N581JN), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48581
- Aircraft time: 90,598 hours, 13,895 cycles
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Outflow Valve
- Condition: Malfunctioned
- Location: Cabin Pressure
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9WGA2020092858101

## Discrepancy

CLIMBING THRU FL330 LEVEL 1 ALERT CABIN OUTFLOW, CABIN CONTINUED TO CLIMB ABOVE 10,000FT RETURNED TO ICN.

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